In cariously exposed immature permanent teeth, the treatment choice is controversial in pediatric dentistry. Radical root canal treatment usually appears to be the solution for these teeth. Even partial pulpotomy is a vital treatment for traumatically exposed immature permanent teeth; extending the borders of indication towards cariously exposed immature permanent teeth with reversible pulpitis may abolish the necessity of pulpectomy. This article describes the partial pulpotomy of a cariously affected immature permanent teeth and the follow-up for 1 year. A healthy 11-year-old male patient was referred to Gazi University Faculty of Dentistry Department of Pediatric Dentistry. The patient had reversible pulpitis symptoms on teeth numbered 45. At radiographic examination, immature apex and deep caries lesion were observed and partial pulpotomy was performed by using calcium hydroxide to maintain vitality of the pulp and allow continued development of root dentin expecting the root will attain full maturity. Clinical and radiographic follow-up demonstrated a vital pulp besides not only closure of the apex (apexogenesis), but also physiologic root development (maturogenesis) after 1 year. Partial pulpotomy is an optional treatment for cariously exposed immature permanent teeth for preserving vitality and physiological root development. 1. Introduction The treatment of cariously exposed permanent teeth should maintain an arrestment of carious process and vital pulp free of inflammation [1]. The aim of vital pulp therapy is to protect the vitality and function of the coronal or remaining radicular pulp tissue [2]. If cariously exposed teeth not treated, pulpal necrosis or periradicular lesions may occur and patients may complain about pain, swelling, or any discomfort [3]. The treatment of option can be decided due to the maturation of the teeth. In deciduous teeth the aim is maintaining the function thereby, removing the infected coronal pulp or mummifying the radicular pulp tissue are the options. In permanent teeth, the border extends and usually following a pulpectomy, obturation of the root canal system is performed. Different factors such as trauma or caries can affect immature permanent teeth’s root development and maturation. If the damage occurs including the pulp of the immature permanent teeth, the treatment becomes a challenge. It has been stated that pulpectomy is the best treatment choice to prevent and/or heal apical periodontitis [4]. It has been proved that, root canal treatment on vital teeth shows succeeding results [5, 6]. Nevertheless,
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